Dashpot for wheel suspensions

Abstract

A dashpot for wheel suspensions, with a preferably sheet-metal spring cup ( 6 ). The cup is attached to a shock absorber or its accommodating tube, supports a helical spring that surrounds the shock absorber or tube, and can be advanced along the shock absorber or tube on threads. To allow the dashpot to be raised and lowered in precise increments, the attachment is maintained tight by a cylindrical housing ( 3 ). The housing is provided with a slot extending over its total length and with outside threads. Its inner surface of the housing rests directly against the shock absorber or its tube. The housing operates in conjunction with a height-adjustment ring ( 12 ) or neck ( 7 ) with matching inside threads on the spring cup. The slope of the threads ensure that the force exerted by the spring on the spring cup will squeeze the slotted housing together radially.

What is claimed is:  
     
       1. A dashpot for wheel suspensions, comprising: a sheet-metal spring cup attached by an attachment to shock absorber means; an accommodating tube of said shock absorber means; a helical spring supported by said spring cup and surrounding said shock absorber means or said tube and being advancable along said shock absorber means or said tube on threads; a cylindrical housing having a slot extending over a total length of said housing and having outside threads; said housing having an inner surface resting directly against said shock absorber means or said tube, said housing maintaining tight said attachment; a height-adjustment ring or neck with matching inside threads on the spring cup, and operating in conjunction with said housing, said threads having a slope for ensuring that a force exerted by said spring on said spring cup will squeeze the slotted housing together radially. 
     
     
       2. A dashpot as defined in claim  1 , wherein said slope or rise of said threads is sufficiently low to ensure that said spring cup will inhibit rotation when subjected to load. 
     
     
       3. A dashpot as defined in claim  1 , including a resilient component between a collar of said spring cup and the slotted cylindrical housing. 
     
     
       4. A dashpot as defined in claim  1 , including a collar on said spring cup and having a conical neck resting on said cylindrical housing through a conical sleeve of resilient material. 
     
     
       5. A dashpot as defined in claim  4 , wherein said sleeve is of rubber or plastic. 
     
     
       6. A dashpot as defined in claim  1 , wherein said inside threads extend over a collar on the shock absorber or said tube. 
     
     
       7. A dashpot as defined in claim  1 , wherein said cylindrical housing has an inside-threaded cylindrical section of longer diameter than that in a shallow bushing squeezing said housing together. 
     
     
       8. A dashpot as defined in claim  6 , wherein said housing or a slotted retaining ring with an outside threaded section operating in conjunction with said inside-threaded cylindrical section rests against the shock absorber or said tube through a securing ring. 
     
     
       9. A dashpot as defined in claim  8 , wherein said securing ring is connected to the shock absorber or said tube and is mounted below the lowest level attained by the lower edge of said housing or by a component of said attachment.